The QUADRIOS 23P131 is a unique hybrid kit that combines two resistor technologies in one box: metal film for precision applications and carbon film for general-purpose tasks. This 800-piece assortment saves you from buying separate kits when your workbench needs both high-accuracy and cost-effective resistors.

What’s Inside

While the exact distribution of values is not specified, the kit covers the range 1Ω to 1MΩ. Typical configuration includes around 400 metal film resistors (0.25W, ±1%, ±100 ppm/°C) and 400 carbon film resistors (0.5W, ±5%, ±350 ppm/°C). The metal film parts are ideal for op-amp circuits, voltage references, and active filters. The carbon film parts handle LED current limiting, pull-ups, and other non-critical functions where higher power (0.5W) may be needed.

Why a Mixed Kit

Engineers often reach for metal film resistors when building analog signal chains, but carbon film resistors are perfectly adequate for digital logic, power supply biasing, and prototyping. This kit eliminates the need to manage two separate inventories. The included accessories (likely a compartmentalized case) keep the two types organized.

For critical applications requiring tight tolerance and low drift, use the metal film resistors. For everything else, the carbon film parts will serve well. The 0.5W rating on carbon film resistors gives them a current-handling advantage over the 0.25W metal film parts.